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Assertion (A): X-ray travels with the sp...

Assertion (A): X-ray travels with the speed of light.
Reason (R): X-ray is an e.m. wave.

A

Both A and R are true and R is the correct explanation of A.

B

Both A and R are true and R is NOT the correct explanation of A.

C

A is true but R is false

D

A is false and R is true

Text Solution

Verified by Experts

The correct Answer is:
A
Velocity of all. electromagnetic wave is `3 xx 10^(8)` m/s which is the velocity of light.
X-ray is an electromagnetic wave. So, it travels with the velocity `3 xx 10^(8)` m/s which is the velocity of light.
So, assertion and reason both are correct and reason properly explains the assertion.
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